People or animals that produce saliva in their mouths.
Salivators are just living things that make spit in their mouths.
Examples:
Dogs are good salivators, especially when they see food.
The baby is a big salivator when she's teething.
The salivators in the zoo are very interesting to watch.
The cat is a sneaky salivator when it sees a bird.
Some people are such big salivators that they drool when they sleep.
The horse is a very messy salivator when it eats.